1. Prepared By: Alka Shah Civil Engineering Department
Concrete Construction
Prepared By:
Alka Shah
Civil Engineering Department

2. Sub Topics:
Types of concretes used in constructions (Self Study Content)
Major concrete (RCC) components and method of construction
Foundations
Columns
Beams
Lintels
Slabs
Chajja
Introduction of IS provisions for concrete constructions

3. Method of construction of foundation
According to reinforcement detailing prepare reinforcement cage
If minimum cover to reinforcement is not provided then follow the guidelines given in national building code like
Tolerances on Placing of Reinforcement
Unless otherwise specified by engineer-in-charge, the reinforcement shall be placed within the following tolerances:
a) for effective depth 200 mm or less ± 10 mm
b) for effective depth more than 200 mm ± 15 mm
Tolerance for Cover
Unless specified otherwise, actual concrete cover should not deviate from the required nominal cover by 100 mm.

4. Cleaning and Treatment of Formwork
All rubbish dust shall be removed from the interior of the forms before the concrete is placed
The face of formwork in contact with the concrete shall be cleaned and treated with form release agent
Release agents should be applied so as to provide a thin uniform coating to the forms without coating the reinforcement

5. Stripping Time
Forms shall not be released until the concrete has
achieved a strength of at least twice the stress to which
the concrete may be subjected at the time of removal
of formwork. The strength referred to shall be that of
concrete using the same cement and aggregates and
admixture, if any, with the same proportions and cured
under conditions of temperature and moisture similar
to those existing on the work.